Voice over Internet Protocol (VoIP)
VoIP refers to the transmission of voice and other content over IP networks. It is also known as IP telephony or internet telephony. It is made possible by digitalizing sounds into IP packets and transmitting them through a network layer where they are again decoded to sound. VoIP is a cost-effective solution for long-distance calls. It can be operated from IP infrastructure and very little additional telephony infrastructure is required.
A CISA aspirant is required to understand the following aspects of VoIP to be able to efficiently evaluate VoIP systems:
- It is very important to consider a backup arrangement for a VoIP system as data traffic normally has less reliability. A backup arrangement is required to ensure that communication is not interrupted in case of an undesirable event impacting the network service.
- Bandwidth capacity should be determined for voice traffic to ensure the quality of the service.
- VoIP infrastructure...
